{"nhtsa_id":625492,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-11-28","date":"2001-09-01","document_id":"650801","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.","mfr_system":null,"summary":"SOME VEHICLES PRODUCED 03/01 - 04/01 WITH C53 CASSETTE RADIO, OPTIONAL CD CHANGER, HI-FI SOUND SYSTEM MAY EXHIBIT A DISTORTED SOUND (HIGH AND LOW FREQUENCY) DURING CD OPERATION, ESPECIALLY WITH HIGHER VOLUME SETTINGS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/625492","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"E39","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"E53","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}